Cannot open messages after "Move Mailbox" used on Exch2003

I have an Exchange 2003 server and I am creating a second mailbox store to move several mailboxes to this store. I created the store and successfully moved a test mailbox over which has about 10 messages. Now when I access this mailbox using Outlook 2002, I can see the messages in the inbox, but cannot open them. The error I recieve is "Unknown Error: The message cannot be opened".

Do I need to change the message store location on the user account as well?

Here's what I would do - first of all, check the application log and verify that you have a "Successfully moved mailbox" message.

Verify that you have completely closed OUTLOOK on your desktop.

In ESM, navigate down to the mailbox stores and verify which store the mailbox is on. You aren't seeing it in both, correct?

Go into ADUC Advanced View and find your user - right click on that user and select REMOVE EXCHANGE ATTRIBUTES. This WILL NOT delete the mailbox. It will only disassociate the user from the mailbox. As long as you've got deleted item retention on (which is on by default), your mailbox isn't going anywhere.

After disassociating the mailbox, go back into ESM and navigate to the mailbox store. Under mailboxes of the appropriate store, right click and select RUN MAILBOX CLEANUP AGENT.

Now your mailbox shows up with a giant red X on it. Right click on the mailbox and reassociate it (reattach it) to your user account. Wait a few minutes so the user account is stamped by the RUS.

Once your mailbox is reattached and your account has been appropriately stamped, open Outlook. Do you see your messages now? You should be able to open them.

If not, you may be dealing with corruption in the store, with an anti-virus problem, or with a random permissions quirk. This procedure, however, may get things moving again - it's a good kick when Exchange gets stuck after a mailbox move.

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